Which option corresponds to plastic jerrican with non-removable head?

• A. 3A2
• B. 1H2
• C. 3B2
• D. 3H1

Answer: (D)

Reading UN packaging codes lets you identify both the container type and its head design from the code. For jerricans, the first character signals the general packaging family, with the number 3 indicating a plastic jerrican. The middle letter identifies the specific design category within that family, and the final digit shows the head type, where 1 stands for a non-removable head (2 would be a removable head). Therefore, 3H1 corresponds to a plastic jerrican with a non-removable head, which is why it’s the correct choice. The other codes point to different designs or materials, so they don’t match the description.